Subgrade planer



July 4, 1933. H. KISTLER El AL SUBGRADE PLANER 1929 2 Sheets-Sheet 1Filed Sept. 27

TORS Tar, JP-

ATTORNEYS.

r2 iii n iwmiiizizz: P W mm T o Q Q a Q u l m O 0m U 5 m LN 3 ea 3 W 3ON July 4, 1933. H. KISTLER ET AL SUBGRADE PLANER Filed Sept. 27, 1929 2Sheets-Sheet 2 .Kis flst INVENTORS. T130111 2112?. JP.

/ -52, Harv N 2% PET J ATTORNEYS.

: sv isii w I N BZ L;

,e V apiiii ii fi e 'eifi mw mai ialli -23 E60 J The preseht inve ritier i'lel attes toffoa di build; ing machmes, andjmo e pentlcularly to aplan 7 ing attachment for subgl edes. of reads fpre? paratorytothesprea'dingbf sulifaeln'g-mate a rials: 1 w r 'An object of thepresent l'iriventibnfis to prvidean attachment for road building mat-1chines, suehpaving machines ofthepreseI 1t day type utilizingjav loadingskip 'whieh extends forwardly irom' the machine to re I eeive the roadibuil'di g material to be mixed in the machineg' a id aimsteiutilize thespace between the loa'dihg skip and the fiainelofthe" machine toj acceoda te the intlpro'vei planer or 'scrapeitv The" common p p actic e atthe 5m 'ehttinie' is to transpert-the paviiig material tefthegmigier intrucks and this operatic-n freq ueritly fei'm's ruts;;b1f;0thefwisedisturbs the p'reparedsubgmd'e gtq such a-n exte t;l th att 3 1 1mechanical means of releveling the subgl ade is gener'ally employed tqminimize the amount" Of Handwork neeesfsary." I

siderablehandwerkstillto' b'e done. j

i "Itis therefore another.ebjeetofthis'jinven tier; to pro idetiiplagner Of suchfeo striic'tion I and? to so mount the blades thereifithat-these f] blades will efiectively clit 01'? slieejbfi' pifejecjtions'qf the material: of theisiihgi' aide'ahd work theloosematerialjcresswise of-themed j so that the material-' may prdperly.{seat "in depressions 6r the-like which are 'formed be t'erialisdelivered at the opposite oiiter sides removed OrdisPOSedOf with Vet-yslight inanualhbol fii 1 v I I *Anothr' obj e'et the inventibn --is-it0prov vide I a planer adapted to ride and rest upon the side railsdiefiri e thell'ateraiedgesf ing maichihe; partly broken away: mid show:3 .iI'1, -the loading skip in 'lowereclpesition 'and I with the planerQf this invention" e I Iiec'ted- H 5 -j,

"ed when haf'rd or COmps tmateriaIis 6121091111 1 tered, its thebladesef thejplaner 01 scraper.

5 fare set at. right angles tethe d ii'eetion'foffthe; travel of theplaner. ndthe teiideiicy in such"- cases" is to' ride-ever s ij chpots-g leavihg een-x j {through a portion ofthe p1ane1 sh0wing the .v

mounting ofoneofgthei'pressureengtlifting eIeI'iieIitS'theyefonf I V I Iiea d huildihg-imtchir eg ing outthispurpese the exc'essloesenedfma- PFigurefiisep-vefilarged'trsnsverse-sectien a, tkenthroughe'n'e Offtheplalheff'blades midpl ot the traction devicesjioitreadsoftherbad i I 7building machine where-it ihay'flb'e" readily planer frame, showing theadjustable extenp HARRYL' KisT QER AND; FYIPETER TRoMm'g m 311.] oE's'-EiulI; iLLINe S st'f ictfireisnci dplarief whieh Qa,framecapablepfextension eiid retxiactio'n l V I a roads-difierelit f 1 1 thefiiiventio 'n "wili be' more' fully; (1e

scfi-bed heieih a'fter; e'r id will be ihore i par thelseYeraIwiews;

' i'Figure '1 is aside elevation-of b th machine;

Figure 2 is aito pi pl'ttil view (if thesa m tio on the lin ej'fl'33 ofBEigIir e *2 -taken I 80 etieh takenfthrough a poi tionpf the planerframe*ahd showing ,one' 'Of the adjustable qbnnections for" attachingthe *to I a itssu'pportjg Y 1 Figure 7. 's fragmentary "from; elevatiqn*Fig'u'ie 8 is answeree transverse section V taken lengitudinallythrough-one end-0f the siens eoniilected thereto;

V. ms tthp o 1 3 1 011 of an 'improved'f coupling 'a rid 'press'ure Imeans which is f c'apfible Of, adj u'stnie l it and tnipableoffiniversalfinriovenient to-adapt the planer to 'i o ad*njixelfsf'vsrious typesand dimensions and which is ads ted to exert a" 0suitable downward; pressure'flipon the. plan ei- V e toifia-ifitttih itin' 'pbsitien and assist the blades u a ypQ I d 1 hz Claims-appended; VT

5' i I i d awin s, wherein like; m olse, i fer -to1 like-(-01e0rresp01-1'din'g' parts throq o a I Figure 311s" an "enlargedfragmentary'a'secwheels 16 carrying a traction belt 18 having treads 19,providing a traction support for the machine. At the forward end, theroad machine '15, is provided with the usual loading skip 20 whichprojects downwardly from the upper part of the machine and is adapted toreceive the various materials which are dumped into the skip,.thematerials adapted to be fed to the mixture when the loading skip israised. From Figure 1 particularly it will be noted that there is aspace between the loading skip 20 and the forward end of the main bodyportion of the road machine 15.

The planer of the present invention is constructed and proportioned tofit in this space so that the space may be utilized and the subgradeoperated upon immediately prior to the passage of the road machine 15thereover.

The planer of this invention comprises a transversely extending framecomposed of front and rear beams,21 and 22. The beams 21 and 22 maycomprise a built up structure,

such as shown in Figures 4, 5 and 8 and wherein the main body part iscomposed of a pa1r of spaced channel lrons 25 with their web portionsconfronting one another and with their flanges extending in oppositedirections, and top and bottom plates 2& connected to the flanges of thechannel irons as by rivets 24-.

The front and rear beams 21 and 22 are secured in parallel spacedrelation by cross pieces 26 of suitable beam construction with gussetsriveted or otherwise suitably secured to the beams 21 and 22 to formtherewith a substantially rectangular elongated frame. Ateach end theplaner is provided with an extension 27 comprising a body part or beam27 which is arranged in parallel relation with respect to the end beams26 of the main frame and arms 28, in the example shown comprisingchannel irons 28 arranged with their web portions abutting in faceengagement and secured together oy rivets 23, slidably disposed withinthe opposite end por-. .tions of the beams 21 and 22 and which arelocked in adjusted position by bolts 29 or the like, as shownparticularly in Figure 8.

These extension frames 27 carry flanged wheels 30 adapted to engage andride upon theupper edges of the side strips or rails used for confiningthe road materialwithin the width of the roadway, these strips or railsbeing shown at 31 in Figures 1 and 2.

The main frame is provided at its intermediate portion and upon itsforward beam 21 with a V-shape planer or cutter blade 32 which isarranged with its angle or point directed forwardly and with its sideportions secured by angle plates 38 or the like across the under side ofthe beam 21. This planer blade 32 may be provided at its rear endportion with. a cross brace 34; suitably secured to the blade 32 bygussets or the like as shown so as to brace the blade 82 againstcollapsin The rear beam 22 of the frame is provided with a pair ofdiagonally extending planer or scraper blades 35 which are secured byattaching plates 36 or the like across the under side of the beam 22with the blades 35 offset inwardly toward each other a sufficientdistance from the rear ends of the blade'32 to provide an overlap sothat the transverse width of the subgrade will be completely traversedduring the forward movement of the planer.

From Figure 2 it will be noted that the blades 35 are of sufiicientlength to terminate beyond the treads 19 of the road building machine sothat material which is loosened or cut off from the subgrade, and whichis not moved into ruts or depresslons 1n the subgrade, is rolled andcarriedbeyond the sides of the machine so that the material may beeasily and conveniently handled.

VII

At each end of the machine the forward and 22 and each of which isdisposed prefer? ably in parallel relation to the adjacent short blade37; there is-o'ne long blade 38 at each end of the planer frame.

tend. across the under side of-the beams 21 In order to completely coverthe width of the roadway when the extensions 27 are employed,eachextension is provided with a short blade 39 which is secured acrossthe under side of the forward arm'28 thereofand which'is preferablybraced at its rear end by a diagonal brace 10 which extends between theblade 39v and the rear end of the extension 27. The blade 87 is disposedpreferably in parallelism with'the adjacent long blade 38 and is adaptedto overlap the same to'anextent dependant u on the adjustment of theextension 27. i

As shown in the drawings, particularly Figure 8, each intermediate brace26 may be provided with an rip-standing stud 41 having a coupling ring12 adapted to be connect-ed with a sultable hoist to raise and lower theplaner 1n removing and positioning the same with respect tothe roadbeing built.

The planer is also provided with a pair of levers 43, one for each stud41 and each is forward end of the road machine, bars pivotally carriedby the frame extending upwarc ly and in rearwardly converging relationtherefrom and pivotally attached to the blades carried by the frame andextending downwardly therefrom for engagement with the subgrade to cutand level the same.

2. In combination with a road building machine, a subgrade planercomprising an elongated frame positioned across the front of the roadmachine, adjustableextensions mounted on the opposite ends of the frame,rollers carried by tl e extensions, said rollers adapted to engage uponthe forms at'opposite sides of the road, pusher connections between theframe and the road machine, certain of said connections extending-downwardly from the road machine to the frame for urging the latterdownwardly against the subsurface, groups of planer blades arrangedattransverse angles across the under side of. the frame and saidextensions and adapted for contact with the surface of the subgrade forcutting projections therefrom and spreading said projections laterallyover the roadway to fill in depressions occurring therein, said planerblades arranged in groups and with delivery throats at opposite sides ofthe road machine for depositing surplus loose material in hills alongthe opposite sides of the machine, and supplemental pressure meansmounted on the forward end of the machine and extending over said framefor increasing downward pressure thereon.

In combination with a road building machine, a subgrade planercomprising a frame, a plurality of planer lades mounted in angularrelation with respect to the frame and to one another across the underside of the frame, means for supporting the opposite ends of the framewith the planer blades in contact with the subgrade, adjustableuniversal connections between the frame and the forward end of the roadmaking machine, and pressure levers operatively engaging said roadmachine and planer for urging the frame downwardly to hold the planerblades in contact with the subgradc.

4. A. subgrade planer comprisin an elongated frame adapted forpositioning in front of a road making machine thereof, pusherconnections carried by the frame adapted for connection with the roadmaking machine and extending downwardly therefrom to emma" urge themachine into contact with the subgrade, a t -shape planer blade mountedacross the under side of the frame intermediate the ends thereof andwith the apex foremost, a second pair of spaced planer blades offsetinwardly from the ends of the \l-shape bladeand disposed insubstantially parallel relation thereto for catching loose material fromthe V-shape blade and carrying the material across the roadway to theopposite sides of the road machine, and other planer blades carried.upon the opposite end portions of the frame and arranged atsubstantially right angles to the first-named blades and having theirpoints of discharge beyond. the opposite sides of the road machine.v r

5. A subgrade planer comprising a frame, adjustable extensions mountedon the opposite ends of the frame, means on said extensions adapted totraverse theforms at the opposite sidesof the subgrade, angularlydisposed planer blades secured across the under side of the frame, andplaner blades carried by the extensions and arranged in overlappingrelation with respect to the adjacent planer blades in the frame forco-operation therewith in covering the entire width of the subgrade.

in combination with a road building machine, a subgrade planercomprising a transverse frame positioned in front of the forward end ofthe machine, bars pivotally carried by the frame extending upwardly andin rearwardly converging relation therefrom and pivotally attached tothe machine foradvancing' the frame ahead of the machine,- and planerblades carried by the frame and extending downwardly therefrom forengagement with the subgrade to. cut and level the same. 7

7. In combination with a road building machine, a subgrade planercomprising a transverse frame positioned in front of the forward end ofthe road machine, bars pivotally carried by the frame extending upwardlyand in rearwardly converging relation therefrom and pivotally attachedto the machine for advancing the frame ahead of the machine, planerblades carriedby the frame and extending downwardly therefrom V forengagement with the subgrade to cut and level the same, and weightlevers in diverging relation from the forward endportion of the roadbuilding machine and operatively connected to the same and to the planerto aid in holding the latter down upon the subgrade.

HARRY L. KISTLER. PETER J. TROMPETER, JIL

